通院ノート is a free iPhone application developed by Karadanote Inc. It is an easy-to-use tool for managing medical expenses, medication, and keeping track of hospital visits. This app is especially useful for individuals who want to prepare for next year's tax filing by recording their medical expenses.

With a user-friendly interface, users can easily input their hospital visits and record details such as treatment, medication costs, medical expenses, and transportation fees. The information can be exported in CSV format, making it convenient for tax deduction applications.

Key features of the app include initial registration support, easy registration of hospital visits through the calendar, setting reminders for upcoming appointments, and generating reports for tax preparation. Users can also manage the medical records of their entire family using this app.

Overall, 通院ノート is a comprehensive and user-friendly application that simplifies the management of medical expenses and hospital visits. It is highly recommended for individuals who want to keep track of their healthcare records and prepare for tax deductions.